What is multi-factor authentication? | Nadex
https://www.nadex.com/learning/what-is-multi-factor-authentication/
WEBHow to set up MFA. Step 1: Download your preferred authenticator app from your phone's app store. Popular options include Google Authenticator, Duo Mobile, Microsoft Authenticator, Authy, and Okta verify. Step 2: From a computer, go to the Nadex login screen and enter your username and password.
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